In a study conducted among 100 randomly selected people over the age of 50; It was seen that 40 people had both a house and a car, 60 people had a house and 70 people had a car. What is the probability that a chosen person will own a house or a car, or both? a) 0.95 B) 0.80 NS) 0.90 D) 0.75 TO) 0.85
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In a study conducted among 100 randomly selected people over the age of 50; It was seen that 40 people had both a house and a car, 60 people had a house and 70 people had a car. What is the |
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Obtain the probability that a chosen person will own a house or a car, or both.
The probability that a chosen person will own a house or a car, or both is obtained below as follows:
From the information, given that
Let A denotes the event that people had house. That is, N(A)=60.
Let B denote the event that people had car. That is, N(B)=70
Let (A and B) denote the event that people had both house and car. That is, N(A and B)=40
Let S denote the event of total outcomes. That is, N(S)=100
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